Carbureter.



A, M. WOLF.

CARBURETER. APPLICATION FILED MAY 26, 1909.

354 4 Patented. Am: 12. 1910.

IVITNE E5 IN V ENTOR.

'susrruaipwonn-tornew roan, N. Y.

eaanunuann.

' gie'cifieation of. Letters ?acent.

Patented ra t-. i2, i9l 0.

' a peas ment-May 26,1909. Serial nurses-19.

To will whom fit md y'cance'm'r sea known that names aim-wei citizen of .the United r St'at-es,"residingat New York, in the. borough of-hilaiihattan, county of New York, and State of New York, have invented certain new and'useful 1 Improvements in'Carbureters, of which the following is a specificzition.

My nvention relates to carbureters' or other such devices as are employed to vaporize aliquid hydrocarbon for use in ina section of the desirable form of construe I btrreter.

level is reached, the valve completely shuts oil the supply. The liquid flows from float chamber A to the mixing chamber (l,

passing up through to the top of the spraying nozzle D. The latter is accessible by removing the drain-plug E, which also aleign matter. "of the mixing chamber C just above the 45' lows cleaning out of sediment or other for- Air enters the open bottom plug E and is then drawn up and through the carbureter by suction, the liquid hydro-- carbon being Yolatilized when the air passes the nozzle D. The throttle F is shown as being of the butterfly type. The intake manifold or pipe conveying the mixture from the carbureter, screws into the outlet end G ofthe same.

The suction caused by the engine is never constant so long as the speed of the same varie Therefore, under this condition, the

liquid hydrocarbon in the spraying nozzle v is, in the ordinary carburetor, Volatilized so as to make: a constantly varying mixture. in -order to prevent this happening, the liquid in thegnozzleshould *bo'l ess accessible to the s ift current of airthan what it is when the air goes by it at a low rate of speed. This I accomplish by causing a partial vacuum, increasing with the increase of speed of the engine, behind the liquid, so that the swift current of air cannot take up too much liquid, yet the slow current of air, when there ispractically no vacuum, has easy access to the same.

Communication is established between the float chamber and the mixture outlet by means of the hole J. The size of the latter is capable or" ,variatlon through the needle valve H.- When once it is properly ,adjustcd, it is locked in position by the nut I. Communication is established between the float chamber and the atmosphere by means of the cock K. This is also adjustable. In

order that the liquid used can flow freely into the float chamber from the tank where stored when needed and that the same can pass on to the spraying nozzle, atmospheric pressure is required in the float chamben- This is supplied through the cock K. When the speed of the engine increases, the partial vacuum in the outlet of the carburetor will extend into the float chamber through the hole J. Thus the atmospheric pressure in the float chamber is reduced, a condition that does not exist in the ordinary carbureter Where it remains constant. From this it will be seen that the liquid at the nozzle is held back and the air is unable to take up too much of it and produce an over rich mixture at higher speeds. The positions oi the valve ll and opening J are such that they are subjected and sensitive to the varying pressures caused by the suction of the engine. The drawing shows them in a con venicnt position; namely in the mixture outlet in the ricinity of the throttle. The float chamber must be perfectly air-Light, except for the two comuuinications mentioned above. The adjustments of both Hand K must be made under running conditions of the engine, when the proper results are obfurther attention. 7

From the foregoing description, taken in connection with the accompanying drawing,

it is thought the complete operation, contained. Unce set, the adjustments need no struction, and. many advantages of my invention will be readily UUdGYSiLOOd by those a skilled in the art to which it appei'taiiis, and I desire it; understood i {ii slighi. changes in the detailed eonsfruetioii and arrangement of parts may he made withoutdepart ing from the scope 0f the, invention and the appended claim.

Having thus described my invention, What I elaim, and desire to secure hy Letters' Patent, is- 1 In a earbureter, a float chamber, a mixing chamber, a portion of said mixing chamber i passing immediately adjacent said float I 1 said wail forming a cover to said 1011i chamber, valve in said wail establishing enmn'mnimi'i'ion between both said ehzmihei's, and m1 adyistzioie cock in said cover udrmttmg atmospheric pressure to said float. chamber, as described.

In testimony wl'iereof I afiix my signatui'e in the presence of two Witnesses.

AUSTIN M. \VOLF. Witnesses MATTHEW CASEY, JAMES Moomn'. 

